feat(gpio): Support pin logic invertion (active high / low) for selected pin modes

[Slider0007]

Support pin logic invertion (active high / low) for pin modes Flashlight Digital, Trigger Cycle Start and Resume WLAN Connection.

• Inputs (Trigger Cycle Start, Resume WLAN Connection): Trigger action with
  • 1-signal (Active High: supply level, 0 -> 1)
  • 0-signal (Active Low: GND level, 1 -> 0)
• Outputs (Flashlight Digital): Flashlight on results in
  • 1-signal (Active High: supply level)
  • 0-signal (Active Low: GND level)

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Further smaller adaptions:

• Trigger Cycle Start, Resume WLAN Connection: Pin debounce time is now adjustable
• WebUI: Align pin caputure mode names (only visual change of selection box items -> capital letters, without dash). Internal naming is unchanged.

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Usage statistics:
Before (based on ESP32):
RAM: [= ] 14.3% (used 46972 bytes from 327680 bytes)
Flash: [========= ] 87.9% (used 1709433 bytes from 1945600 bytes)

After:
RAM: [= ] 14.3% (used 46972 bytes from 327680 bytes)
Flash: [========= ] 87.9% (used 1709785 bytes from 1945600 bytes)